Special core analysis

In the petroleum industry, special core analysis, often abbreviated SCAL or SPCAN, is a laboratory procedure[1] for conducting flow experiments on core plugs taken from a petroleum reservoir. Special core analysis is distinguished from "routine (RCAL) or conventional (CCAL) core analysis" by adding more experiments, in particular including measurements of two-phase flow properties, determining relative permeability, capillary pressure, wettability, and electrical properties. Due to the time-consuming and costly character of SCAL measurements, routine core analysis (RCAL) data should be inspected thoroughly to select a representative subset of samples for SCAL. [2][3]

References
  1. http://www.glossary.oilfield.slb.com/Display.cfm?Term=special%20core%20analysis%20(SCAL)
  2. Mirzaei-Paiaman, Abouzar; Asadolahpour, Seyed Reza; Saboorian-Jooybari, Hadi; Chen, Zhangxin; Ostadhassan, Mehdi (2020). "A new framework for selection of representative samples for special core analysis". Petroleum Research. doi:10.1016/j.ptlrs.2020.06.003.
  3. Mirzaei-Paiaman, Abouzar; Saboorian-Jooybari, Hadi (2016). "A method based on spontaneous imbibition for characterization of pore structure: Application in pre-SCAL sample selection and rock typing". Journal of Natural Gas Science and Engineering. 35: 814–825. doi:10.1016/j.jngse.2016.09.023.
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